Ultraviolet (UV) light occurs just below visible light in the electromagnetic spectrum. It is a component of sunlight and is categorized into three sections: A, B and C. The “C” band of ultraviolet light (UV-C) is a natural disinfectant and its use for sterilization is a proven technology. UV-C has been used to control microorganisms since the 1930s in medical and pharmaceutical applications, in the food and beverage industries, and in water treatment for homes, businesses and industry. UV-C application for air treatment is more recent, but it is now commonly found in many hospitals, pet centers, and office buildings.
How UV disinfects
UV-C has the ability to penetrate and break-up up the DNA of microorganisms, which renders them completely harmless. It is the same process that occurs outdoors with sunlight — nature’s way of controlling airborne bacteria and viruses
History of uses
The Earth’s ozone layer allows just enough UV light from the sun through the atmosphere to keep the air from being overly contaminated with bacteria and viruses. Since realizing this, people have harnessed the power of UV light to control bio-growth anywhere it is harmful. UV is used widely in medical/pharmaceutical professions as well as the food and beverage industries to sterilize instruments, equipment, and especially water. UVC is also used for for allergy relief, fewer colds, and to add freshness to the air.